Milk-urn.



. Patented Nov. 28, I899.

N. MUSLAR.

M l L K U R N A lication filed Aug. 3, 1899.)

(No Model!) m: wams PETERS co.. PHOTO-LITNO wA snmswu. n. c.

NITED STATES PATENT OFFICE.

H. FAIRBANKS, OF SAME PLACE.

MILK-URN.

SPECIFICATION forming part of Letters Patent No. 637,815, dated November 28, 1899. Application filed August 3,1899. Serial lilo. 726,006. (No model.)

T 60% whom it may concern;

Be it known that I, NELSON MUSLAR, of Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Milk-.Urns,

of which the following is a specification.

My invention relates to improvements in milk-urns; and the object is to produce an apparatus for holding milk and cream and [o to deliver therefrom milk of uniform quality. At present, so far as known to me, in the urns in use the cream rises to the top, so that, in drawing off, skim-milk is first supplied instead of a mixture of milk and cream, and

[5 no cream is drawn until the supply of skimmilk is exhausted, and, further, in the present urns the milk and cream being on the outside of the ice-chamber are liable to sour, as they are thus exposed to the heat. By

my arrangement the above objections are avoided, inasmuch as the cream and milk are agitated and mixed before being delivered, and no liquid can be drawn from the apparatus without previous agitation and mixture, the mixing of the cream and milk always taking place before the drawing off. Further, by my construction the milk being surrounded by ice no matter what the weather may be the ice must first melt and the icewater become warm before the milk can sour.

The ice is protected by a surrounding chamber, which may be filled with a heat-nonconducting material to protect the ice against heat.

3 5 My invention consists of certain novel features hereinafter described, and particularly pointed out in the claims.

In the accompanying drawings, which illustrate a construction embodying my invention,

Figure l is a central sectional View through my improved milkurn. Fig. 2 is a plan View taken on the line 2 2, Fig. 1. Fig. 3 is a cross-sectional view through the apparatus 011 the line 3 3, Fig. 1. Fig. 4 is an enlarged detail sectional view showing the valve raised to allow the withdrawal of liquid.

Like letters of reference refer to like parts throughout the several views.

The milk-urn A is provided with a hollow base B, upon the upper side of which rests the outer cylinder 0, the lower edges of which are soldered to the top of the base B. Within the cylinder 0 is located another cylinder D, the lower edges of which are soldered to the base B. The chamber E, formed by these two cylinders, is preferably filled with heathen-conducting material E, as ground cork,

to protect the ice I within the cylinder D, and resting on top of the cylinder C is acover F. Within the cylinder D is located another cyl- 6o inder G, the lower edges of which rest on the top of the base B, and located upon the upper edges of said cylinder G is a cover J. Located in the cover J is a sleeve K, and projecting upwardlyinto said sleeve K is asleeve L, provided at its lower end with a crosspiece L, to which are secured the agitators M. The sleeve L is held fast in the sleeve K by means of the set-screw L The shaft N extends from the upper edge of the sleeve L through the cross-piece L, through the cross piece N, then through the stu ffingbox N and terminates in the flange-bottom N The upper end of the shaft Nis provided with a spiral thread N with which engages the finger N on the arm 0, having a suitable handle 0 and held in its normal position, as shown, by the spring 0 with the finger N in the top of the spiral groove N and pivoted on the sleeve K at the point 0 The sleeve K and the sleeve L move with the arm 0, as they are connected to move as one. The horizontal extension K ofthe sleeve K is recessed to support the lower end of the spring 0 and during the movement of the arm 0 said extension slides along the rib K, formed in the bottom of the cover J. The shaft N is held in its normal position, as shown in Fig. 1, by the spring P, which rests at its lower end against the flange-base N and at its upper end against the stuffing-box N Screw-threaded on the lower end of the stufling-box N is a cylinder P, which at its lower end carries the valve P, which is held in its normal closed position down on its seat in the valve-casing Q by spring R, the lower end of which spring rests upon the top of the valve P and the upper end rests against the bottom of the stuffing-box P. The bottom H of the milkchamber is screw-threaded and meshes with :00 the thread on the valve-casing Q. The packing H is secured tightly in place between he tom H of the milk-ch mbe and the p of he base B, and th Pack ng liiis secured in place between the base B and 'thevalve-casing Q, and by means of these two packings no liability of leakage of the liquid is incurred. The valve -.casing Q is provided with an upwardly-extending cylinderifU, which is screw-threaded 0n the outside olfg the stuffing-box P, and said cylinder is provided with the ports U, through'whieh the mixture of cream and milk passes from the milk-chamber G to the discharge-pipe S,

' drinkhich r qui es sti ing before serving,

he op ation o the apparatus s as. fol

lows; W th the pp ratus in ts. o ma posion (shown in F g hen no liquid is. be ng d awn off an i s d si ed to d a liquid the operato akes hold of th handl 0 of the arm 0 nd u ns it to t ght, which. turns the ag ato s M and m xes the liq d, prod neing a un fo m qu y throughouthaudle 0' urns three complete revo ions,

the finge N as m ed o nd he spira roove N a has ifte h h ft Nags-inst hilt? lrGllfilQH 0f the spring P and fully co nptess d sa d pr ng ga d a the fourth oomple e e oluti n o the arm 0 takes place the va ve i is a ed ga n t he ensio of the spring B, an the spring P bei g fu ly eon press d the p ar m emen of. the shaft N ao s on he st fi g-box N and rai es the valve P3 and the liquid passes through the po ts U to e bot m of he al e-easina z and out ro gh the di oh rge-p pe S, of which th r may be ny num er e din frern the va e=oasing Q h the requ red amount o iqu d h een rawn, h aunt) is pressed down ag ins the p ing 0 hioh Pulls the finger ou f he spira groove N and releases t e sha whi h. allows he springs B and P to t, hich. sens s. the valve P to elose on. its seat the valve-easing-Q' followed by the downward move ent at the flange-bottom N hen he apparatus is in its normal po ition, n liqui being drawn,

-I.t i obvious hat is apparatu m gh he used f r hoco at ed c ne, or any liquid The stirring ar ngemen an the a e eonnee tion may b attache to ny qu d apparatus,

o that the cont n el ed are u i form in qual ty- It i be desired, with h pa ts i normal position, a s n in Figto agi ate he iquid i ho t d aw g o he handleof the arm 0 s m e t a h t nd the nger N ill pass out of t e spi alg oo e N ho t a ec g the shaft b t the slee .K, s e ve L, and ag a o s M will be. turned by the m vemen of the arm 0, thus preserving he n f m, quali y of he liquid,

Afte the ldo notli nit niyse f to the arrangeme t a onstruction sho as the same maybe varied invention and set forth a construction embodying the same, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In an apparatus of the character specified, a chamber for holding liquid, an outlet for'said liquid, a valve normally closing said outlet, means for agitating the liquid in said liquid-chamber, means for openin'g said valve tdallOwthe discharge of liquid through said outlet, and means for holding said valve closed until the liquid has beenagitated.

In an pparatus o -the character specilied, a ohanibe fo holdi g liquid, an outlet for said. liquid, means. for agitating'the liqu d n aid liquid-chamber, means for opening sa valve to al o the d scha ge oi liquid r for saidliquid, a valve no mally closing said clos d unt l the l quid has been. agita ed.

i- In an apparatus of t e oharaeter speeitied, a eh inher or hold ng liqu d, an outlet orsa d liquid, a a ve normally closing aid ou et, an agitator or the liquid. in said. liquid-chamber, means for opening aid val e,

and an operating devise eornni n to said. agitater and sa d valve=opening means or agitating the iquid and for subsequently opening the valve to allow the discha ge of liquid through said outle r In. an apparatus of the eharaeter spe itied, a chamber for hold ng l quid, an. outle or said liquid, a valve or ally elosingsaid ou let, agitator forthe l qu d in said l q aid-chamber, means for opening said Valve, an perating deviee eouin on to sa d agi ato and said val e-opening rneans or agi atin t e q i a d o subsequen ly opening the valve to allo the disoh ge of liquid through said outlet, and. means for holding. said valve el'osedun il the liquid ha been ag tated- In an appar us. of the'eharaote speeilied, e n ber for holding liquid, an outlet for said iquid, a valve normally closing said outlet, an agitator f r the l quid in. said iduid ehaniher, means tor opening said valve,

upon the removal of said common device from engagement with said valve-opening means.

7. In an apparatus of the character specified, a chamber for holding liquid, an outlet for said liquid, a valve normally closing said outlet, an agitator for the liquid in said liquid-chamber, means for opening said valve, an operating device common to said agitator and said valve-opening means for agitating the liquid and for subsequently opening the Valve to allow the discharge of liquid through said outlet, means for closing said valve upon the removal of said common device from engagement with said valve-opening means, and a spring for holding said common device normally in engagement with said valve-opening means. 1

8. In an apparatus of the character specified, a chamber for holding liquid, an outlet for said liquid, a valve normally closing said outlet, an agitator for the liquid in said liq uid-chamber, means for opening said valve, an operating device common to said agitator and said valve-opening means for agitating the liquid and for subsequently opening the valve to allow the discharge of liquid through said outlet, and yielding means compressed by the opening of said valve for closing said valve upon the removal of said common device from engagement with said valve-opening means.

9. In an apparatus of the character specified, a chamber for holding liquid, an outlet for said liquid, a valve normally closing said outlet, yielding means for holding said valve normally closed, a cooling-chamber surroundvalve-rod upwardly against said yielding means which closes said valve upon the removal of said arm from engagement with said spiral groove in said valve-rod.

10. In an apparatus of the character specified, a chamber for holding liquid, an outlet for said liquid, an agitator for the liquid in said liquid-chamber, a valve normally clos ing said outlet, a cooling-chamber surrounding said liquid-chamber, an exterior chamber surrounding said cooling-chamber, a valvecontrolled outlet for the water from said cooling-chamber, mechanism for operating said agitator to agitate the liquid and for subsequently opening the valve to allow the dis charge of liquid from said outlet, and means for holding said valve closed until the liquid has been agitated.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 25th day of July, A. D. 1899.

NELSON MUSLAR.

Witnesses:

A. L. MEASER, V. M. MACLELLAN. 

